Hose Top.
Flexible hose that is part of the engine cooling system.

• Important part of cooling system
• The hose coolant travels through to get between the radiator and engine
• Replace when cracked or leaking

Your INFINITI relies on the cooling system to keep the vehicle from overheating. And the cooling system depends on a working, quality Radiator Coolant Hose (Upper) to operate properly. As the coolant fluid in your INFINITI travels through the coolant system and radiator to your engine, it has to go through a Radiator Coolant Hose (Upper). It's essential that the Radiator Coolant Hose (Upper) remain free from leaks, cracks, or bloating that may cause further damage to your vehicle.

Eventually, the rubber that makes your vehicle's Radiator Coolant Hose (Upper) can get old and wear out. If this happens, the Radiator Coolant Hose (Upper) may become brittle and crack, causing a coolant leak. If an excess amount of coolant leaks out, the engine may not get enough coolant to keep the engine temperature under control, which could cause your INFINITI to overheat. If the engine overheats, it may lead to repairs and damage your vehicle.

Additionally, the Radiator Coolant Hose (Upper) may bloat, meaning the hose bulges out or swells in some places. An overheating engine due to low coolant could cause intensely heated coolant to pass through the hose, causing the rubber material to swell and bloat, possibly causing additional cracks and damage to your vehicle's Radiator Coolant Hose (Upper).

If you believe the Radiator Coolant Hose (Upper) on your vehicle needs replacing, a visual inspection is often a good place to start. When checking the coolant system, always ensure the coolant system and engine are completely cooled down, as the cooling system is pressurized, and extremely hot coolant fluid can spray if the Radiator Coolant Hose (Upper) breaks.

When looking at the Radiator Coolant Hose (Upper), look for cracks, warping, dry-rotted areas, and swelling. Check the ground underneath the vehicle for coolant leaks, specifically where the Radiator Coolant Hose (Upper) attaches to the vehicle.

Additionally, look at your dashboard if you suspect a bad Radiator Coolant Hose (Upper). Check to see if the Low Coolant light is on or if the temperature gauge is in the red, meaning your engine is running too hot. Your owner's manual gives an overview of your vehicle's dashboard lights and what they mean.

Is your INFINITI in need of a new Radiator Coolant Hose (Upper)? Order a genuine replacement Cooling System Radiator Coolant Hose (Upper) for your INFINITI Q50. See the What This Fits tab for more details.

Fits Q50